Zero-inflated Poisson (ZIP) regression is a model for count data with excess zeros. It assumes that with probability p the only possible observation is 0, and with probability 1 - p, a Poisson (λ) ...

You can use PROC GENMOD to perform a Poisson regression analysis of these data with a log link function. This type of model is sometimes called a loglinear model. Assume that the number of claims c ...

For this example, the probability function of the response variable is Poisson. a link function that relates the mean to the linear function of explanatory variables. For this example, the link ...